XvPutStill

XvPutStill(3x)                                                  XvPutStill(3x)



Name
       XvPutStill - write a single frame of video to a drawable

Syntax
       #include <X11/extensions/Xvlib.h>

       XvPutStill(dpy, port, d, gc, vx, vy, vw, vh, dx, dy, dw, dh)

       Display *dpy;
       XvPortID port;
       Drawable d;
       GC gc;
       int vx, vy, dx, dy;
       unsigned int vw, vh;
       unsigned int dw, dh;


Arguments
       dpy            Specifies the display screen on which the Xv Server is
                      to accept requests from Xv clients.  If the display
                      option is not specified, Xv uses the display screen
                      specified by your DISPLAY environment variable.  The
                      display option has the format hostname:number.  Using
                      two colons (::) instead of one (:) indicates that DECnet
                      is to be used for transport.

       port           Defines the port from which to get the still.

       d              Defines the drawable into which the still is to be
                      written.  Pixmaps are currently not supported.

       gc             Defines the graphical context.  GC components are:
                      subwindow-mode, clip-x-origin, clip-y-origin, and clip-
                      mask.

       vx,vy,vw,vh    Define the location and size of the video region to be
                      written.  vx and vy define the upper-left pixel of the
                      region. vw and vh define the width and height, in
                      pixels, of the region.

       dx,dy,dw,dh    Define the location and size of the destination region
                      into which the still image is written.  dx and dy define
                      the upper-left corner of the region. dw and dh define
                      the width and height, in pixels, of the region.

Description
       XvPutStill(3x) writes a single frame of video to a drawable.  The
       position and size of the source (video) rectangle is specified by vx,
       vy, vw, and vh.  The position and size of the destination (drawable)
       rectangle is specified by dx, dy, dw, and dh.

       Video data is clipped to the bounds of the video encoding, scaled to
       the requested drawable region size (or the closest size supported) and
       clipped to the bounds of the drawable.

       If the port is grabbed by another client, this request is ignored, and
       an XvVideoNotify event with detail XvBusy is generated for the
       drawable.  If the port is not receiving a valid video signal a
       VideoNotify event with detail XvHardError is generated for the
       drawable.

Returned Values
       [Success]
               Returned if XvPutStill(3x) completed successfully.

       [XvBadExtension]
               Returned if the Xv extension is unavailable.

       [XvBadAlloc]
               Returned if XvGetStill(3x) failed to allocate memory to process
               the request.

Diagnostics
       [XvBadPort]
               Generated if the requested port does not exist.

       [BadDrawable]
               Generated if the requested drawable does not exist.

       [BadGC] Generated if the requested graphics context does not exist.

       [BadAlloc]
               Generated if there were insufficient resources to process the
               request.

See Also
       XvPutVideo(3x), XvGetStill(3x), XvVideoNotify(3x)



X Version 11                      libXv 1.0.1                   XvPutStill(3x)